Merge multiple JUnit XML results files into a single results file.

merge_junit_results.py

#!/usr/bin/env python

"""Merge multiple JUnit XML results files into a single results file."""

#  MIT License
#  
#  Copyright (c) 2012 Corey Goldberg
#  
#  Updated by Thanh Nguyen - September 2019

import os
import sys
import xml.etree.ElementTree as ET


"""Merge multiple JUnit XML files into a single results file.
Output dumps to stdout.
example usage:
    $ python merge_junit_results.py results1.xml results2.xml > results.xml
"""


def main():
    args = sys.argv[1:]
    if not args:
        usage()
        sys.exit(2)
    if '-h' in args or '--help' in args:
        usage()
        sys.exit(2)
    merge_results(args[:])


def merge_results(xml_files):
    failures = 0
    tests = 0
    errors = 0
    time = 0.0
    cases = []

    for file_name in xml_files:
        tree = ET.parse(file_name)
        root = tree.getroot()
        for test_suite in root:
            failures += int(test_suite.attrib['failures'])
            tests += int(test_suite.attrib['tests'])
            errors += int(test_suite.attrib['errors'])
            time += float(test_suite.attrib['time'])
            cases.append(test_suite)

    new_root = ET.Element('testsuites')
    ET.SubElement(new_root, 'testsuite', failures='%s' % failures, tests='%s' % tests, errors='%s' % errors, time='%s' % time)

    for case in cases:
        for suite in new_root:
            suite.extend(case)
    new_tree = ET.ElementTree(new_root)
    ET.dump(new_tree)


def usage():
    this_file = os.path.basename(__file__)
    print('Usage:  %s results1.xml results2.xml' % this_file)


if __name__ == '__main__':
    main()

Updated code to get rid of using soon deprecated getChildren().